A Bosu exercise ball — known as a balance board or Bosu balance trainer ... Remember to switch legs halfway through your reps. Learning how to do a burpee will get you through many a high-intensity ...
How to do stand-up sit-ups If you’ve got reverse burpees in mind (a staple of CrossFit workouts ... The saving grace was using a bosu ball to rest my mid to upper back on, meaning there was less ...